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The ASC ENGINEERED SOLUTIONS 8700160206 is a 3 inch galvanized square head cored plug rated for 150 class service. This threaded plug is designed to seal pipe openings in iron and steel piping systems, keeping lines closed during pressure testing, system modification, or when a branch outlet is not in use. The square head drive allows for installation and removal with a standard pipe wrench or adjustable wrench. The galvanized finish provides corrosion resistance suited for general plumbing and mechanical piping applications. Sold individually, this plug is a standard stocking item for plumbing and pipefitting work.
This plug is used in residential and commercial plumbing, mechanical piping, and industrial pipe systems where a 3 inch threaded male end requires a secure, pressure-rated closure. Common install scenarios include capping unused tee outlets, isolating pipe sections during repairs, and closing test ports. The 150 class pressure rating makes it appropriate for typical low-pressure water and gas distribution piping. Licensed plumbers and pipefitters are the primary installers in both new construction and service work.
Designed as an OEM-style replacement and standard-stock threaded plug for 3 inch female NPT pipe fittings in 150 class iron and steel piping systems.
Installation is performed by licensed plumbers or pipefitters. Depressurize and isolate the piping system before installing or removing any threaded plug. Apply appropriate thread sealant or PTFE tape to the male threads per local plumbing code requirements. Do not overtighten, as excessive force can crack fittings or damage threads.
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